309456097564 has 24 divisors (see below), whose sum is σ = 562012158960. Its totient is φ = 148915288704.

The previous prime is 309456097481. The next prime is 309456097567. The reversal of 309456097564 is 465790654903.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a junction number, because it is equal to n+sod(n) for n = 309456097499 and 309456097508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309456097567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4225234 + ... + 4297849.

It is an arithmetic number, because the mean of its divisors is an integer number (23417173290).

Almost surely, 2^309456097564 is an apocalyptic number.

It is an amenable number.

309456097564 is a deficient number, since it is larger than the sum of its proper divisors (252556061396).

309456097564 is a wasteful number, since it uses less digits than its factorization.

309456097564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8523429 (or 8523427 counting only the distinct ones).

The product of its (nonzero) digits is 24494400, while the sum is 58.

The spelling of 309456097564 in words is "three hundred nine billion, four hundred fifty-six million, ninety-seven thousand, five hundred sixty-four".